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However, this always indicates a leak. A Kandua professional diagnosis is essential to find and fix the leak, not just top up the gas. The most common sign is the unit blowing warm air.

In dusty areas like the Highveld or humid coastal regions, regular servicing is crucial to maintain efficiency and prevent breakdowns. Annually, ideally just before summer. This is worth noting for Johannesburg homeowners.

Find out more in our Aircon Installation Cost Guide. If the repair cost is over 50% of the price of a new unit and your aircon is over 10 years old, replacement is usually smarter, and this is especially relevant for Johannesburg residents. Newer models are far more energy-efficient, a key factor with South Africa's rising electricity costs.

It is most often caused by a clogged condensate drain line. This is a common issue in humid areas like KwaZulu-Natal, where the unit removes a lot of moisture from the air.

This could be a dirty filter, a refrigerant leak, or a faulty compressor or fan. A Kandua professional technician can quickly diagnose the exact cause. A qualified professional can provide specific guidance for your situation.